Book excerpt: This insightful guide, which has proven hugely popular around the world in hardback, not only includes the most significant ideas that have influenced the management of business over the past century, but it also includes entries on the most influential business thinkers of the past and present. Entries on ideas include: Active Inertia; Disruptive Technology; Genchi Genbutsu (Japanese for "Go and See for Yourself"); The Halo Effect; The Long Tail; Pareto Principle ; Six Sigma;, Skunkworks; SWOT analysis; Thin Slicing; Tipping Point; Triple Bottom Line.